Method and assembly for determining the temperature of a test sensor

Abstract

An assembly determines an analyte concentration in a sample of body fluid. The assembly includes a test sensor having a fluid-receiving area for receiving a sample of body fluid, where the fluid-receiving area contains a reagent that produces a measurable reaction with an analyte in the sample. The assembly also includes a meter having a port or opening configured to receive the test sensor; a measurement system configured to determine a measurement of the reaction between the reagent and the analyte; and a temperature-measuring system configured to determine a measurement of the test-sensor temperature when the test sensor is received into the opening. The meter determines a concentration of the analyte in the sample according to the measurement of the reaction and the measurement of the test-sensor temperature.

Description

CROSS REFERENCE TO RELATED APPLICATIONS[0001]This application claims the benefit of U.S. Provisional Application No. 60 / 980,086, filed Oct. 15, 2007, and U.S. Provisional Application No. 61 / 050,101, filed May 2, 2008, the contents of these applications being entirely incorporated herein by reference.FIELD OF THE INVENTION[0002]The present invention generally relates to a method and assembly for determining an analyte concentration in a sample of body fluid collected on a test sensor. More specifically, the present invention generally relates to a method and assembly for measuring the temperature of the test sensor to determine the temperature of a reagent reacting with the analyte and to achieve an accurate determination of the analyte concentration based on the reaction with the reagent.BACKGROUND OF THE INVENTION[0003]The quantitative determination of analytes in body fluids is of great importance in the diagnoses and maintenance of certain physiological abnormalities. For example...

AI Technical Summary

Benefits of technology

[0007]Reagents that are used to measure analyte concentration in a sample of body fluid may be sensitive to changes in temperature. In other words, the magnitude of the reaction between the reagent and the analyte may depend on the temperature of the reagent. As a result, any calculation of the analyte concentration in the sample based on the reaction may vary with the temperature of the reagent. Accordingly, to achieve a more accurate measurement of the analyte concentration, some embodiments of the pre

Problems solved by technology

The accuracy of such testing methods however may be affected by the temperature of the test sensor.

In reality, however, the thermistor, which is typically located on a printed circuit board, actually provides the temperature of the meter.

Because the temperature of the meter can be very different from the test sensor temperature, the analyte measurement may be inaccurate.

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